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45+3x=-20+8x
We simplify the equation to the form, which is simple to understand
45+3x=-20+8x
We move all terms containing x to the left and all other terms to the right.
+3x-8x=-20-45
We simplify left and right side of the equation.
-5x=-65
We divide both sides of the equation by -5 to get x.
x=13
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